She was later possessed by the Phoenix Force and joined the zombie Galacti.

Powers and Abilities

Powers

Jean Grey-Summers is one of the most powerful mutants who ever lived. She has great control over her incredibly powerful telepathic and telekinetic abilities. After the Phoenix Force became one with its true heart and soul in the human form of Jean Grey, whose mind serves as a nexus point for all realities, Phoenix was able to tap into the vast powers from the sum of all life (the Phoenix Force); hence, her own powers were augmented to an unimaginable level and she became capable of controlling and wielding the incredible powers of the Phoenix Force. She can create and control flames at will (Cosmic Pyrokinesis), as well as control matter, energy, and thoughts completely. She also can resurrect herself after death.
Telepathy[1]: She can manipulate the minds of others and even higher order animals within a vast, potentially limitless radius.
Telekinesis: telekinetic abilities enable her to levitate herself or other objects, propel or manipulate them however she wishes, stimulate individual molecules to create heat, and generate concussive force or protective shields.

Abilities

Phoenix excels in astral combat.

Strength level

Phoenix possesses the normal human strength of a woman of her age, height and build who engages in moderate regular exercise.